3412C GENERATOR SET ENGINE Caterpillar


Camshaft Bearings

Usage:

Remove Camshaft Bearings

Start By:

a. remove camshaft

b. remove flywheel housing

c. remove pistons

1. Remove the rear camshaft bearing with tooling (A).

2. Remove the remainder of the camshaft bearings with tooling (A). Start at the rear of the engine block and move toward the front.

Install Camshaft Bearings

1. Install the rear camshaft bearing and three internal camshaft bearings with tooling (A). Install the bearings from the rear of the block bore. Install the bearings until the front edge of the bearing is even with the front surface (1) of the block bore.


NOTICE

Be sure each bearing is in alignment with the cylinder block bore before the bearing is installed. Install all the bearings so that the oil hole in the bearing is in a horizontal position 90 ± 15 degrees and the bearing clinch joint is at an angle of 45 ± 5 degrees.


2. Install the front camshaft bearing with tooling (A) until it is 7.4 ± 0.10 mm (.291 ± .004 in) from the machined surface on the front of the cylinder block, as shown.

End By:

a. install pistons

b. install camshaft

c. install flywheel housing

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